Stella Johar

Physiology Module 1 --> study of function in living organisms --> mechanisms which they control internal environment --> explains physical & chemical factors of function and disease Homeostasis <-- maintenance of internal environment Internal environment <-- interstitial fluid & blood plasma External environment <-- outside body, contents digestive, respiratory & urogenital tracts --> maintains homeostasis via (+) & (-) feedback Negative Feedback Control Systems --> all of them contain same

Cells Module 3 Cell membrane selectively permeable -> Carbohydrates for cell recognition -> Cholesterol for stability & immune response -> Associated enzyme act as catalysts for reactions Carriers - Transport molecules across membrane Identity Markers - Distinguish between self & foreign cells Pores - Allows water soluble subs in cell Enzyme - Chemical reactions, breakdown of molecules Receptor - Attach hormones & neurotransmitters Diffusion - Electrically charged molecu

Sensory System Module 7 Transduction Environment --> how external stimuli detected by sensory receptors Environmental Stimuli Stimulus must be detected by sensory receptor Different environmental stimuli, therefore different receptors needed Mechanical Stimuli --> Touch, pressure, vibration, sound, proprioception (muscle sense) Chemical Stimuli --> Taste, pain, odours Electromagnetic Stimuli --> Light Other Stimuli --> Gravity, motion, acceleration, heal Adequate Stimulus Some receptors detec